Revolver.



PATENTED JUNE 28, 1904.

No. 763,581.l

D. B. WESSON. REVOLVER. APPLoATIon FILED 11110.10, 190s.

N0 MODEL.

Patented June 28, 1 904.

PATENT Omron.

DANIEL B. WESSON, OF SPRINGFIELD, MASSACHUSETTS.

REVOLVER.

SPECIFICATION forming part of Letters Patent No. 763,581, dated J' une28, 1904.

Application filed December 10, 1903. Serial No. 184,701. (No model.)

T0 all whom, t may concern:

Be it known that I, DANIEL B.WEssoN, a citizen of the United States ofAmerica, residing at Springfield, in the county of Hampden and State ofMassachusetts,have invented new and useful Improvements in Revolvers, ofwhich the following is a specification. y

This invention relates to revolver constructions, the object thereofbeing' to improve the construction forming the subject of United StatesLetters Patent issued to Joseph H. Wesson on August 14, 1900, No.655,844, and on September 2, 1902, No. 708,437. In these said priorconstructions one spring, which acts as a trigger-spring, a spring tohold the hand in operative position and to effect the rebound, is shown.This spring bears directly on the hand and trigger and the arm wherebythe rebound of thehammer is effected. This spring must of necessity beso located as to pass to one side of the hammer, bearing on the triggerat one side thereof and on the rebounding device at one side thereof,which position is'unfavorable to the smooth action of the mechanism ofthe arm owing to the side strains to which the parts actuated by thespring are subjected. In the construction forming the subject-matter ofthis application this objectionable feature of the said priorconstructions .has been overcome; and the invention consists in theimprovement described in the following specification, and clearlypointed out in the claims forming part thereof.

In the drawings forming part of this application, Figure lis a sideelevation of a revolver constructed according to my invention,

the side plate and cheek-piece of the grip being removed. Fig. 2 is asimilar view of the lock mechanism of the revolver shown in a differentposition. Fig. 3 is a perspective View of an arm connected with thehammer to eifect the rebounding of the latter. Fig. 4 is aperspectiveview of the trigger. Fig. 5 is a view of the lock mechanism similar t0that `shown in Fig. 1 embodying a slight modification in theconstruction of the mechanism Yof the parts whereby the hand isoperated.

Fig. 6 is a side elevation of some of the parts of Fig. 1, showing themin the position they occupy just before their Voperation whereby therebound of the hammer is effected.

Referring now to the drawings, a indicates the frame of the revolver, inwhich is hung the hammer thetrigger c. The hammer is provided with theusual mainspring d and the trigger with the trigger-spring e, which inaddition to this function is the means for effecting the rebound of thehammer. This spring e is secured in the butt of the grip and extendsupward toward the heel of the hammer, terminating at a point somewhatbelow it when the hammer is down. The free end of the spring bearsagainst the upper side of the arm f, which is pivoted to the frame at g,the forward end of the arm extending forward tothe trigger and enteringa slot L, (see Fig. 4,) milled in the edge of the trigger and extendingthrough the upper part thereof parallel with the sides. Attached to theforward end of the arm f and located in this slot L in the trigger is alink z', which is shown only .in dotted lines in Figs. 1 and 2 of thedraw- I ings. In the upper end of this link is a pin j, locatedtransversely of the link and extending through a slot lc, formed in thewall of the trigger, which slot is concentric with the pivotal point mof the hand 0, the pin j' extending beyond the side of the trigger andinto the side of the hand. The trigger is pivoted in the frame on thepin p.

Assuming that the parts are in the position shown in Fig. l, if thetrigger be pulled to cock the hammer the hand will be raised, rotatingthe cylinder in the usual manner, and the link c', pivotally connectedas it is with the free end of the arm f, simultaneously swings thelatter upward, following the movement of the trigger, and the spring eby this movement of the arm f is put under a tension against which thetrigger is pulled back, and the fact of the connection between the endof the arm f and the trigger through the medium of the pin q and thehand forwardly of the pivotal point of the hand keeps the latter alwaysin yielding engagement with the ratchet on the cylinder. By means ofthis The construction whereby the greater easel of operation oftherabove-described parts is attained may be attained also in theoperation of the rebounding mechanism, and the latter will now bedescribed.

In principle the rebounding of the hammer is edected in substantiallythe same manner as in the patentsto Joseph I-I. Wesson, above referredto; but whereas in said patents the arm corresponding to the arm r shownhere- 1n was hung on the side of the hammer 1n this construction I makeit as shown Fig. 3, f

and as thus made the upper end of said arm is divided and made toreceive the lower edge of the hammer between the two arms's, the lowerend of the arm being milled out in the same manner, resulting in theformation of the two arms t, which embracebetween them the arm f. By asuitable pin the arm 7 is then pivotally secured to the hammer, and byanother pin in the lower end thereof said arm engages the arm f, inwhich there is a longitudinal slot u, so located as to permit the lowerend of the arm r to have the necessary freedom of movement to follow themovement of the hammer when the latter rises and falls. I/Vhen theylatter .operation takes place upon the pulling of the trigger, thelower end of the arm o slides back to the position shown in Fig. 6,somewhat above the abutment/v on the frame, until pressure on thetrigger is released, whereupon the reaction of the spring e will forcethe rounded lower end of said arm r against the abutment, therebyforcing the lower end of the hammer forward, retracting the nose of thehammer as in all rebounding mechanisms. of the rebounding mechanism allside strain is removed from the pivot of the hammerI because of thelocation of the arm r in the same plane as the hammer, and the arm r,located as it is, is much more easily operated to eect the rebound thanin the construction described in said prior patents. Furthermore, asidefrom the advantages of the location of the parts described herein in theplane of the hammer and trigger, a further advantage is derived in doingaway with the form of spring rendered necessary by the prior By means ofthis construction constructions above referred to, that spring being atroublesome one to make and of necessity being so long as to necessitatemaking it relatively quite stiff in order to do its work properly.

By means of the improvements herein described a much smoother action ofthe revolver mechanism is attained.

In Fig. 5 is shown a slight modification of the construction shown inFigs. l and 2 of the manner of connecting the arm f with the hand. Inthis modification no change in the manner of supporting the hand on thetrigger is made, but instead of connecting the arm f with the pin q,projecting from the hand, by means of a linke' a small two-armed lever wis pivotally mounted in the slot in the trigger near the forward edge ofthe latter, the two arms of said lever extending rearwardly, on thelower one of which the forward end of the arm f bears, the upper arm ofsaid lever bearing on the pin g. This manner of connecting the arm fwith the hand and the trigger insures the same result in the operationof the parts as in the construction shown in Figs. l and 2 and clearlyfalls within the scope of this invention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent of the United States, is-

1. In a revolver, the trigger, the Vhand pivotally supported on one sidethereof, a spring `for the trigger, an arm pivoted by one end on theframe on which arm said spring bears, the opposite end of which armextends toward the trigger and is located in a slot in the edge of thelatter, a link also in said slot connected with the end of said arm, andwith the hand, forwardly of the pivotal point of the latter, through anopeningV in the side of the trigger.

2. The combination with the frame of a revolver, of a hammer andtrigger, a trigger.- spring located back of the trigger not bearingdirectly thereon; an arm located between the spring and the triggerpivotally supported on the frame by one end, its opposite end having abearing on the trigger; a second arm pivot.- ally supported on the loweredge of the hammer and having a sliding engagement with the IOO IIO

arm on which the trigger-spring bears, and

an abutment on the frame against which the lower end of the arm on thehammer is pressed to rebound the hammer, by the action of thetrigger-spring.

3. In a self-cooking revolver, aframe, atrigger and hammer, said triggerhaving a slot through its upper portion parallel to its side, a handpivoted to the side of the trigger, a pin in the hand extending throughan open- -ing in the side of the Ytrigger into said slot;

a link in the slot pendent from said pin; an arm supported on the frameby one end and connected with said link by its opposite end, end of saidhammer-connected arrn may be a sprirg bearinlg on salid arm, la soondarm pressed to effect the rebound of the hammer. pivote t0 tie ower e geof tie amrner to T swing in the plane of the latter, the lower endDANIEL B' Vl ESSON' 5 of said arm having a sliding engagement withWitnesses:

the arrn on which said spring bears, and an H. A. CHAPIN, abutment onthe frame against which thelower K. I. CLEMoNs.

